http://www-personal.umich.edu/~mejn/election/2016/ http://www-personal.umich.edu/~mejn/election/2016/ is a pretty good example of that. A version of the fourth

http://www-personal.umich.edu/~mejn/election/2016/ http://www-personal.umich.edu/~mejn/election/2016/ is a pretty good example of that. A version of the fourth map on that page ("Here is a map of US counties...") is hanging somewhere in the West Wing; one of the ones at the bottom is perhaps more accurate.